<template>
	<section>
		<!--工具条-->
		<el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
			<el-form :inline="true" :model="query">
				<el-form-item>
					<el-input v-model="query.keyword" placeholder="关键字"></el-input>
				</el-form-item>
				<el-form-item>
					<el-button type="primary" v-on:click="search">查询</el-button>
				</el-form-item>
				<el-form-item>
					<el-button type="primary" v-perm="'role:add'"  @click="handleAdd">新增</el-button>
				</el-form-item>
			</el-form>
		</el-col>

		<!--列表:优秀实践，copy domain修改列表-->
		<el-table :data="pageData.data" highlight-current-row v-loading="listLoading" @selection-change="selsChange" style="width: 100%;">
			<el-table-column type="selection" width="55">
			</el-table-column>
			<el-table-column type="index" width="60">
			</el-table-column>
			<el-table-column prop="name" label="名称" width="220" sortable>
			</el-table-column>
			<el-table-column prop="sn" label="编码" width="180" sortable>
			</el-table-column>
			<el-table-column label="操作" >
				<template scope="scope">
					<el-button size="small" @click="handleEdit(scope.$index, scope.row)">编辑</el-button>
					<el-button type="danger" v-perm="'role:delete'" size="small" @click="handleDel(scope.$index, scope.row)">删除</el-button>
				</template>
			</el-table-column>
		</el-table>

		<!--工具条-->
		<el-col :span="24" class="toolbar">
			<el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0">批量删除</el-button>
			<el-pagination layout="prev, pager, next" @current-change="handleCurrentChange" :current-page="query.currentPage" :page-size="query.pageSize" :total="pageData.total" style="float:right;">
			</el-pagination>
		</el-col>

		<!--新增和编辑对话框-->
		<el-dialog :title="title"  :visible.sync="roleFormVisible" :close-on-click-modal="false">
			<!--ref="roleForm" 指定表单名称，以后可以通过this.$refs.roleForm-->
			<el-form :model="role" label-width="80px" :rules="roleFormRules" ref="roleForm">
				<el-form-item label="名称" prop="name">
					<el-input v-model="role.name" auto-complete="off"></el-input>
				</el-form-item>
				<el-form-item label="角色编码" prop="sn">
					<el-input v-model="role.sn" auto-complete="off"></el-input>
				</el-form-item>
				<el-form-item label="分配菜单" prop="menus">
					<el-cascader v-model="role.menus" clearable
							placeholder="试试搜索：指南"
							:options="menuTree"
							:props="{
									multiple: true,
								 	label:'name',
									value:'id'
								 }"
							filterable></el-cascader>
				</el-form-item>
				<el-form-item label="分配权限" prop="permissions">
					<el-select v-model="role.permissions" multiple placeholder="请选择">
						<el-option
								v-for="item in permissionList"
								:key="item.id"
								:label="item.name"
								:value="item.id">
							<span style="float: left">{{ item.name }}</span>
							<span style="float: right; color: #8492a6; font-size: 13px">{{ item.sn }}</span>
						</el-option>
					</el-select>
				</el-form-item>

			</el-form>
			<div slot="footer" class="dialog-footer">
				<el-button @click.native="roleFormVisible = false">取消</el-button>
				<el-button type="primary" @click.native="save" :loading="roleLoading">保存</el-button>
			</div>
		</el-dialog>

	</section>
</template>

<script>
	export default {
		data() {
			return {
			    title:'',
				pageData:{
				    total:0,//分页条
					data:[]//数据表格
				},
				query:{
				    keyword:'',
				    currentPage:1,//分页条
					pageSize:10 //分页条
				},
				listLoading: false,
				sels: [],//列表选中列
				roleFormVisible: false,//编辑界面是否显示
				roleLoading: false,
				roleFormRules: {
					name: [
						{ required: true, message: '请输入名称', trigger: 'blur' }
					],
                    sn: [
                        { required: true, message: '请输角色编码', trigger: 'blur' }
                    ],
                    menus: [
                        { required: true, message: '请分配菜单', trigger: 'blur' }
                    ],
                    permissions: [
                        { required: true, message: '请分配权限', trigger: 'blur' }
                    ],
				},
                menuTree:[],
                permissionList:[],

				//编辑界面数据
				role: {
					id: null,
					name: '',
					sn: '',
                    menus:null,
                    permissions:null
				}
			}
		},
		methods: {
            handleChange(value) {
                this.role.index = value;
            },
			search(){
			    //修改页码
			    this.query.currentPage =1;
			    //改查询条件=双向绑定输入时自动改变，只需要重新查询一次就ok
			    this.getRoles();
			},
			handleCurrentChange(val) {
				this.query.currentPage = val;
				this.getRoles();
			},
			//获取用户列表
			getRoles() {
				this.listLoading = true; //加载条
				this.$http.post("/role/list",this.query)
                    .then(result => {
                        console.log(result)
                        this.pageData.data = result.data.rows;
                        this.pageData.total = result.data;
                        this.listLoading = false; //去除加载条
                    })
					.catch(result=>{
					    alert("抱错了！");
					})

			},
			//删除
			handleDel: function (index, row) {
				this.$confirm('确认删除该记录吗?', '温馨提示', {
					type: 'warning'
				}).then(() => {
					this.listLoading = true;
					let url = "/role/"+row.id;
					this.$http.delete(url)
                        .then((result) => {
							result = result.data; //{sucesss:true,message:"xx"}
                            this.listLoading = false;
                            if(result.success){ //成功提示
                                this.$message({
                                    message: '删除成功',
                                    type: 'success'
                                });
							}else{
                                this.$message({ //错误提示
                                    message: result.message,
                                    type: 'error'
                                });
							}
							//重新加载数据
                            this.getRoles();
                        });
                }).catch(() => {
                });
			},
			//显示编辑界面
			handleEdit: function (index, row) {
			    //修改对话框标题
                this.title = "修改角色";
                this.getMenuTree();//加载父级角色
			    //弹出对话框
				this.roleFormVisible = true;
				//回显
				this.role = Object.assign({}, row);
				if(row.ownMenus){//需要回显，这里要处已经拥有的权限的格式
					let menus = [];
					for(let i=0;i<row.ownMenus.length;i++){
					    let menu = row.ownMenus[i];
                        let menuTmp = [];
					    if(menu.parent_id != null && menu.parent_id != ""){
                            menuTmp.push(menu.parent_id);
						}
                        menuTmp.push(menu.id);
                        menus.push(menuTmp);
					}
					this.role.menus = menus;
				}

			},
			//显示新增界面
			handleAdd: function () {
                //修改对话框标题
                this.title = "添加角色";
			    //弹出对话框
				this.roleFormVisible = true;
                //置空数据，防止先点修改，后点添加有值
				this.role =  {
                    id: null,
                    name: '',
                    sn: '',
                    menus:null,
                    permissions:null
                };
			},
			//保存
            save: function () {
				this.$refs.roleForm.validate((valid) => {
					if (valid) {
						this.$confirm('确认保存吗？', '提示', {}).then(() => {
							this.roleLoading = true;
							let para = Object.assign({}, this.role);
							//处理分配菜单参数格式 menus:[[22,23],[22,24],[22,25]]---->menus:[23,24,25]
							let menusArr = para.menus;
							if(menusArr){
							    let menusTmp = [];
							    for (var i=0;i<menusArr.length;i++){
							        let menuTmp = menusArr[i];
                                    menusTmp.push(menuTmp[menuTmp.length-1]);
								}
                                para.menus = menusTmp;
							}
							this.$http.put("/role",para)
							  .then((result) => {
								this.roleLoading = false;
								result = result.data;
								if(result.success){
                                    this.$message({
                                        message: '提交成功',
                                        type: 'success'
                                    });
                                    this.roleFormVisible = false; //关闭对话框
                                    this.$refs['roleForm'].resetFields();//重置表单
                                    this.getRoles(); //重新加载
								}else{
                                    this.$message({
                                        message: result.message,
                                        type: 'error'
                                    });
                                    //失败了可能修改了提交
								}
							});
						});
					}
				});
			},
			selsChange: function (sels) {
				this.sels = sels;
			},
			//批量删除
			batchRemove: function () {
			    //遍历选择记录把id放到一个数组中
				var ids = this.sels.map(item => item.id); //[1,2,3]
				this.$confirm('确认删除选中记录吗？', '温馨提示', {
					type: 'warning'
				}).then(() => {
					this.listLoading = true;
					this.$http.patch("/role",ids)
						.then((result) => {
							this.listLoading = false;
							result = result.data;
							if(result.success){
                                this.$message({
                                    message: '删除成功',
                                    type: 'success'
                                });
							}else{
                                this.$message({
                                    message:result.message,
                                    type: 'error'
                                });
                            }
                            //跳转到第一页
                            this.handleCurrentChange(1);
					});
				}).catch(() => {

				});
			},
			getMenuTree(){
			    this.$http.get("/menu/tree")
					.then(result=>{
					    if(result.data){
                            this.menuTree = result.data;
						}
					});
			},
            getPermissionList(){
			    this.$http.get("/permission")
					.then(result=>{
					    if(result.data){
                            this.permissionList = result.data;
						}
					});
			}
		},
		mounted() {
			this.getRoles();
			this.getMenuTree();//加载菜单树
			this.getPermissionList();//加载权限下拉列表
		}
	}

</script>

<style scoped>

</style>